
Middletown Northampton County
- County:
- Dauphin County
- County Seat:
- No
- Area (mi²):
- 2.614
- State:
- Pennsylvania
Middletown is a CDP located in Dauphin County, Pennsylvania. Middletown has a 2025 population of 7,196. Middletown is currently declining at a rate of -0.22% annually but its population has increased by 4.44% since the most recent census, which recorded a population of 6,890 in 2020.
The average household income in Middletown is $129,575 with a poverty rate of 8.57%. The median age in Middletown is 49.2 years: 48 years for males, and 49.4 years for females.